1. past tense of relapse; returned to a former worse condition or state

1. having returned to a previous undesirable condition, especially regarding illness or bad behavior

Examples

• After months of sobriety, he relapsed and started drinking again.
• The patient relapsed into depression despite the medication.
• She relapsed into her old habit of procrastination during finals week.
• The relapsed patient was readmitted to the hospital.
• The cancer relapsed after two years of remission.
• He was a relapsed smoker who had quit three times before.
• The country relapsed into civil war after the peace treaty failed.